(function () {
    'use strict';
    var mod = angular.module('myMessages');
    var serviceId = 'fileReaderService';

    mod.filter('filesize', function () {
        var units = [
          'bytes',
          'KB',
          'MB',
          'GB',
          'TB',
          'PB'
        ];

        return function (bytes, precision) {
            if (isNaN(parseFloat(bytes)) || !isFinite(bytes)) {
                return '?';
            }

            var unit = 0;

            while (bytes >= 1024) {
                bytes /= 1024;
                unit++;
            }

            return bytes.toFixed(+precision) + ' ' + units[unit];
        };
    });

    mod.filter('trustUrl', function ($sce) {
        return function(url) {
            return $sce.trustAsResourceUrl(url);
        };
    });
})();